Pikes Peak Challenge, Barr Trail, Manitou Springs. Hike to the summit of Pikes Peak on the Barr Trail in this benefit for the Brain Injury Association of Colorado. Sat., Sept. 9, 5 a.m. Call 574-1634 for more or visit pikespeakchallenge.com.

Bike with Pike Century Ride, from John Martin Reservoir to Historic Arkansas Riverwalk of Pueblo. Follow in the footsteps of Zebulon Pike on a 100-mile journey. Sat., Sept. 23, 6 a.m. Call 719/583-8631 or visit frontierpathways.org for more.